[exim] Forwarding with Exim 3?

Hi,

How would I go about setting up a forward for an email address? For
example, let's say I have the domain "foo.com" and I want all emails
sent to "mail@???" to be redirected to "mail@???". In my
example "foo.com" points to my server and "foo.org" points to another
web server I do not have access to. Also, I really don't know anything
about Exim or any mail server for that matter. What kind of
configuration would I need to set this up in Exim 3?

Thanks,
Todd